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Method and apparatus for identifying and alleviating semantic memory deficiencies

  • US 4,987,903 A
  • Filed: 11/14/1988
  • Issued: 01/29/1991
  • Est. Priority Date: 11/14/1988
  • Status: Expired due to Term
First Claim
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1. A method for diagnosing Alzheimer'"'"'s disease, comprising:

  • (a) detecting the electroencephalogram signal from the scalp of a subject to produce a signal representative of evoked response potentials;

    (b) instructing the subject to perform a semantic memory task in response to a stimulus;

    (c) measuring the amplitude of the most positive-going peak of said evoked response potential signal during the 270-550 ms period following said stimulus; and

    (d) comparing said amplitude to a standard to determine whether said amplitude indicates an Alzheimer'"'"'s disease condition.

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